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Finding the Fourth Proportional to 612,281.41, 918,405.20 and 163,006.18

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Solution

The fourth proportional to 612,281.41, 918,405.20 and 163,006.18 is: 244,504.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,281.41 : 918,405.20 = 163,006.18 : x
  2. Step 2: Convert to fraction form
    612,281.41/918,405.20 = 163,006.18/x
  3. Step 3: Cross multiply
    612,281.41x = 918,405.20 × 163,006.18
  4. Step 4: Simplify right side
    612,281.41x = 149,705,721,455.64
  5. Step 5: Solve for x
    x = 149,705,721,455.64/612,281.41
  6. Step 6: Final answer
    x = 244,504.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.